baber/WOPTO huggingface dataset:
Patent GB-971163-A (GB)
Title: Cooling systems for aircraft
Inventor: ROGERS BRIAN HOWARD
IPC: B64D13/06
Filed: 1960-11-26
Abstract: 971,163. Refrigeration; ventilating aircraft. NORMALAIR Ltd. Nov. 22, 1961 [Nov. 26, 1960], No. 40711/60. Headings F4H and F4V. Engine compressor bleed air for cooling and ventilating the enclosure of a supersonic aircraft is cooled by one or more evaporators of a closed circuit vapour cycle system comprising a multistage refrigerant compressor 1, a ram air or fuel cooled condenser 3, expansion valve means, and two or more evaporators each cooled by separate refrigerant flows which communicate with different stages of the refrigerant compressor so that they work at different, predetermined pressures and temperatures. In Fig. 1, the two sections of an evaporator 7 are connected respectively to the first and second stage inlets of a constant speed compressor 1, and expansion valves 10, 11 are controlled by temperature-sensing devices downstream of the two evaporator sections. A capacity control 14, e.g. a manually or automatically controlled restrictor, in line 9 regulates the pressure, and hence the evaporating temperature of refrigerant in the second evaporator section. In a second embodiment (Fig. 2, not shown), the vapour cycle system has a third branch including an evaporator which cools a mixture of cooled engine compressor bleed air and air recirculated from the enclosure. In a third embodiment, Fig. 3, the vapour cycle system comprises a multi-stage variable speed compressor 1 driven by bleed air passing through a turbine 30, an evaporator 7 in one branch cooling the bleed air, and an evaporator 15 cooling recirculated air which is pumped by a fan 33 driven by a bleed air turbine 32. Before reaching the evaporator 7, the bleed air is is cooled by ram air and by fuel in heat exchangers 40, 41, respectively.
Patent GB-1139815-A (GB)
Title: An automatic ink supplying device for a duplicating machine
IPC: B41L13/18
Filed: 1966-09-13
Abstract: 1,139,815. Ink supply device; stencil duplicator. SEIKI KOGYO K.K. 13 Sept., 1966 [14 Sept., 1965], No. 40918/66. Heading B6C. An inking device for a stencil printer comprises a drum 1 rotatable about a shaft S; two side members 2, 2<SP>1</SP> which are fixed to the shaft S; a bridging member 3 with ink reservoir 4 which are fixed to the side members; and a net 5 and a screen 6 whose longitudinal edges are attached to the sides of the bridging member 3. Thus parts 2, 2<SP>1</SP>, 3, 4, 5 and 6, forming a printing drum B, rotate with the shaft S, while the drum 1 is rotated intermittently through small angles by means of a cam mechanism connected to the shaft. Ink fed on to the surface of the drum 1 from the reservoir 4 is therefore forced out of the screen surface on to a stencil paper A. By supplying paper between the printing drum B and a pressure roller C, printing from the stencil A is achieved. The pressure roller C is tripped whenever the ink storing means, on rotation, approaches the roller during printing. The drum 1 preferably rotates through 10 to 20 degrees for every rotation of handle 20 connected to shaft S, which in turn rotates the printing drum in general through 1 revolution. The cam and clutch mechanism for the rotation of drum 1 is illustrated in Figs. 3-9 (not shown). Further embodiments of the invention involve forming parallel annular grooves (28) in drum 1 to reduce its rotational resistance, Figs. 10-11 (not shown); forming deep annular grooves (30) in the side members 2 and 2<SP>1</SP> so that inking is restricted even when the stencil paper is not in complete registration (Figs. 12 and 13, not shown); and forming the perforations in net 5 with long perforations and a constant perforation ratio in the circumferential direction, thus providing even ink distribution (Figs. 14 and 15, not shown).
Patent GB-1336655-A (GB)
Title: Method of forming a seat cover portion and a seat cover portion produced thereby
IPC: B68G7/02
Filed: 1971-09-06
Abstract: 1336655 Sewing pattern FORD MOTOR CO Ltd 6 Sept 1971 '[23 Oct 1970] 41364/71 Heading D1G A pattern 18 serving as a guide for a subsequent sewing operation is printed on the exposed surface of an insert blank 14 which has been sewn to a fibrous cellular or other backing material 12 to form an insert 10 to which facings may be sewn to form a vehicle seat cover. In the apparatus in Fig. 2 backing material 12 from a roll 20 is fed by rollers 30 through stations 22, where an insert blank 14 is placed on the backing material; 24; where stitches 16 are sewn; 26, where a guide pattern 18 is  screen printed; 28 where the pattern is dried; 32, where the side edges 34 are cut and 36, where the transverse cuts 38 are made. (For Figures see next page)
Patent GB-921491-A (GB)
Title: Improvements in and relating to monitors for alpha particles
Inventor: LOCKEY DAVID JOHN
IPC: G01T7/02
Filed: 1959-12-07
Abstract: 921,491. Measuring α-radiation. NUCLEAR POWER PLANT CO. Ltd. Nov. 30, 1960 [Dec. 7, 1959], No. 41530/59. Class 40 (3). The α-activity of a gas is measured by passing the gas between phosphor coated transparent sheets 1-5, Fig. 1. Scintillations are trapped in the sheets by internal reflection and escape only from ends A to a photomultiplier 7. To improve light collection ends A may be formed convex and all other edges silvered.
Patent GB-1109898-A (GB)
Title: Magnetic game apparatus
Inventor: WILSON JOSEPH MARTIN
IPC: A63F3/00
Filed: 1965-10-01
Abstract: 1,109,898. Magnetic game apparatus. ROYALTY PROJECTS Ltd. (W. RIVA). 21 April, 1966 [1 Oct., 1965], No. 41721/65. Heading A6H. A magnetic game apparatus comprises a .platform with a number of openings therein, movable magnetic playing pieces disposed in the openings and marked so that a player ,may observe their position, means to restrain the pieces against movement on the platform and means to free the pieces when desired, so that they may move relative to each other in accordance with their magnetic fields. The apparatus described and shown in cross-section in the figure has a circular base 1, provided with a circular upstanding flange 2 to receive a circular depending flange 3 which is part of platform 4. The circular rim 5 of the base may contain holes for playing pieces not in use. The playing pieces 7 have central projections 10, two horizontal trunnions 11 which lie in recesses 12 and contain a bar magnet lying at right angles to the line joining the trunnions. The playing pieces may be inserted in the apparatus when platform 4 is in its lowest position, the platform is then raised as in the figure when the pieces are free to flip over (i.e. turn through 180‹) under the influence of the polarity of adjacent pieces.
Patent GB-1284548-A (GB)
Title: Automatic transmission
IPC: F16H47/08
Filed: 1969-08-21
Abstract: 1284548 Change-speed gear NIPPON DENSO KK and TOYOTA JIDOSHA KOGYO KK 21 Aug 1969 [9 Sept 1969] 41843/69 Heading F2D Apart from the omission of the detailed description of the electronic control circuit for the three-speed embodiment, the description is identical with that of Specification 1,284,547, but the claims are directed mainly to an electronic circuit in which torque-converter input and output speeds N1, N2 are detected, and computed to slip-ratio N2 : N1, each one of these three variables N1, N2 and N2 : N1 being caused to issue a signal when a predetermined value is satisfied; and a circuit for issuing an output signal to energize a shift-valve when the predetermined slip signal is co-existent with at least one of the two predetermined speed signals.
Patent GB-975212-A (GB)
Title: Improvements relating to apparatus for engaging and displacing loads of articles andmaterials and the like
IPC: A01D87/12
Filed: 1962-11-07
Abstract: 975,212. Tractor attachments for lifting bales. LINCOLN COLLEGE. Nov. 7, 1962 [Nov. 21, 1961], No. 42086/62. Heading B8H. A tractor attachment for lifting bales comprises arms 7a, 7b, Fig. 9, attached to a T-shaped frame 4, 6, by horizontal pivots 9, counterbalanced by springs 11 and braced by links 13 which slide in a vertical slot 16 and ensure that the arms move in unison. To lift a bale or the like the apparatus is moved along with skids 18 resting on the ground until the arms 7b are on either side of the bale. The arms are now raised by the tractor linkage 2, 5 and the arms swing downwardly and inwardly as their weight is sufficient to initially overcome the restraint imposed by the springs 11. As soon as projections 17 engage the bale the weight of the latter is added to the weight of the arms thus causing them to move further inwards as the frame 4, 6 is raised, thereby increasing the gripping force. When compression of the bale ceases it is lifted from the ground. A telescopic frame 20, 20b prevents the load toppling backwards. The member 6 may be attached to the member 4 by a vertical stub 4b, Fig. 6. Members 8, Fig. 9, by which the arms 7 are pivoted to the frame 4, 6, are provided with several holes so that the spacing between the arms can be altered. The arms 13 may be replaced by chains. The ends of arms 7 may be semi-circular to facilitate lifting drums. Wheels may replace the skids 18 and a further skid may be provided on the frame 4, 6.
Patent GB-1410692-A (GB)
Title: Process for the production of decoratife enamel coatings
IPC: C23D5/00
Filed: 1973-09-07
Abstract: 1410692 Patterned enamels BAYER RICKMANN GmbH 7 Sept 1973 [8 Sept 1972] 42090/73 Heading C1M A decorative enamel coating is produced on an aluminium containing substrate by coating the substrate in an enamel slip; working the surface of the slip while still moist to produce a pattern on the slip; and firing the slip and substrate to produce a patterned enamel coating. A second slip may be applied to the first slip before firing. The pattern is preferably produced using paint brushes, rollers, sponges or doctors. The firing temperature is in the range 500‹ to 600‹ C. Two enamel frits are disclosed, one containing in percentage by weight SiO 2  28À9; TiO 2  21À7; K 2 O 16À3; Na 2 O 13À5; B 2 O 3  4; Si 2 O 2À2; SnO 2  5À6; Bi 2 O 3  5À6; CaO 2À2; and a second containing PbO 37À4; SiO 2  30À0; TiO 2  12À7; K 2 O 2À2; Na 2 O 13À8; Si 2 O 2À3; Sb 2 O 3  1À6.
Patent GB-1186156-A (GB)
Title: Improvements in or relating to Mono and Binocular Telescopes.
IPC: G02B23/18
Filed: 1968-09-05
Abstract: 1,186,156. Telescopes. K. STEINER [trading. as STEINER-OPTIK KARL STEINER]. Sept.5, 1968 [Sept.5, 1967], No. 42230/68. Heading G2J. A mono or binocular telescope has a carrier 6 on which are mounted in relatively adjusted position an objective 4 and a prism system 7, the carrier being tightly located in a casing 2 carrying an eye-piece 3. The casing and the carrier are made of the same, preferably plastics, material such as polycarbonate. The plate 5 of the carrier 6 is formed with a mount 10 forming a light shaft 11 for an exit prism 9 and a shaft 12 for an entry prism 8 which together with prism 9 form a Porro system. The abutment face 13 for the exit prism 9 and the abutment face 14 of the entry prism 8 are co-planar. Key means, composed of a key member 17 integrally formed with plate 5 and a key member 18 tightly wedged into place presses the hypotenuse face of the prism 9 tightly against the abutment face 13 of the carrier, which is also provided with holes 19 for adjusting screws. The carrier 6 flanges into the casing 2 where there are inter-engaging locating projections and recesses Fig.2 (not shown).
Patent GB-426680-A (GB)
Abstract: 426,680. Lighting gas fires. BRATT, COLBRAN, & CO., & THE HEAPED FIRE CO., Ltd., and BRATT, L. A., 10, Mortimer Street, London. March 6, 1934, No. 7179. [Class 75 (iii)] In means for automatically igniting a gas-fire burner on opening the gas cock, a friction-wheel 10 is mounted loosely on the operating spindle 6 of the cock and is secured to a tripping disc 11 connected by a spring 22 with a cam 12 fixed on the spindle. During the opening of the cock by a half turn of the spindle, the disc 11 is held against rotation by a spring catch 14 and the spring 22 is stressed until the cam 12 disengages the catch 14 when the wheel 10 is rapidly rotated by the spring 22 for igniting a pilot-jet 23. The latter ignites a second pilotjet 24, both jets being supplied with gas before gas passes to the burner nipple 28, and the jet 24 ignites the burner. A spring 31 is fixed at one end to the removable bracket 18 and at the other end to an arm 32 on a bracket 33, mounted loosely on the spindle, and a lug 21 on the cam is adapted to engage the arm 32 so as to stress the spring 31 during the final opening movement. On releasing the spindle after ignition, the spring 31 returns the arm 32 against an abutment 20 thereby turning back the cock through a small angle for closing the supply passage for the pilot-jets. A lug 34 on the cam resets the disc 11 during the closing of the cock. The flint tube 27 is detachable for renewing the flint 13. The Provisional Specification describes also a construction in which a retraction arm is fixed on the spindle and co-operates with a ribbon spring carried by the bracket.
Patent GB-1276329-A (GB)
Title: Paper product incorporating fibrous polyester material
Inventor: SHIELDS DONALD JAMES
IPC: D21H13/24
Filed: 1969-08-28
Abstract: 1276329 Hydrolysed polyester fibres EASTMAN KODAK CO 28 Aug 1969 [3 Sept 1968] 42916/69 Heading B5B [Also in Division D2] In Example 4 a tow of filaments of polyethylene terephthalate is drawn at a ratio of 3 : 1 in a 0À25% aqueous NaOH bath at 68‹ C., followed by further drawing at a ratio of 1À34 : 1 in a steam chest at 150‹ C. The fibres are heatset and cut into staple for use in reinforcing paper.
Patent GB-992758-A (GB)
Title: Improvements in or relating to the preparation of milk-powder
Inventor: R GIDDEY CLAUDE R
IPC: A23C1/12
Filed: 1962-11-13
Abstract: A milk powder of good solubility and increased stability in hot water, coffee and tea is prepared by subjecting skim milk which has been concentrated under reduced pressure until 27-45% by weight of total milk solids remain, whole milk or milk with a high cream content, which has been concentrated under reduced pressure until 30-48% by weight of total milk solids remain, at a pH of at least 6.4 to heat treatment for 1-30 seconds at a temperature of 150 DEG C.-110 DEG C., preferably for 6 seconds at 130 DEG C., prior to drying, preferably spray drying. The pH is adjusted, when necessary, by addition of diluted sodium carbonate or bicarbonate, or sodium hydroxide.  The concentrated milk may be pre-heated for 15 minutes at 80 DEG C. prior to the short-time heat treatment. Specification 801,740 is referred to.
Patent GB-1261419-A (GB)
Title: Plate heat exchanger
IPC: F28F3/08
Filed: 1969-09-02
Abstract: 1,261,419. Plate heat-exchangers. HISAKA SEISAKUSYO K.K. 2 Sept., 1969 [5 Sept., 1968], No. 43331/69. Heading F4S.  In a plate heat exchanger comprising a stack of spaced apart gasketed plates 13 clamped between a main support frame 9 and an end frame 8 and wherein one of the fluids B flows through the stack in a multipass system, the one fluid is returned to the main support plate from the end frame, after passing through the stack in heat exchange relation with fluid A, by means of a separate fluid passageway 19. A return connection 18 leads fluid B from the outlet 7 in the end frame 8 to the passageway 19. This arrangement permits both heat exchange fluids A and B to enter and leave the stack at the same end, thereby allowing stack thickness adjustments to be made without affecting the. fluid inlet and outlet connection 10, 11 and 12, 20. As shown, fluid B flows through alternate spaces j and k via annular passages 22 in the plates surrounding the passageway 19. Fluid A flows in a one pass system through the spaces h to emerge from the stack through outlet 12.  In an alternative embodiment (Figs. 9-11, not shown) the outward and return flow passages for the fluid B through the stack are defined by an arrangement of apertures in the plates together with aligned gaskets.
Patent GB-1040468-A (GB)
Title: Preparation of rare earth metal, yttrium, or scandium
Inventor: SCHECHTER DALE LUPFER
IPC: C22B59/00
Filed: 1964-10-26
Abstract: Rare earth metals (including Sc and Y) is prepared by heating a reducing metal together with a coherent mass of rare earth metal chloride in an inert atmosphere to a reaction temperature at least 30 DEG C. lower than the melting point of the resulting rare earth metal sponge but higher than the melting point of the reducing metal choride by-product; the reducing metal must have a boiling point at atmospheric pressure at least 100 DEG C. below the boiling point of the rare earth metal.  Suitable reducing metals are Na, K, Li, Mg, Ca, Ba, Zn and Cd.  The melting point of the reducing metal chloride may be lowered to the required value by the addition of melting point depressants, such as alkali metal or alkaline earth metal halides which are not reducible by the reducing metal.
Patent GB-1416755-A (GB)
Title: Duplicating material
Inventor: CESPON MANUEL
IPC: D21H19/80
Filed: 1973-09-18
Abstract: 1416755 Duplication set KORES HOLDING ZUG AG 18 Sept 1973 [21 Sept 1972] 43698/73 Heading D2B In a duplication set comprising a transfer sheet and a copy sheet, the transfer sheet has an upper surface suitable for writing upon and a lower surface provided with a pressure-sensitive transfer coating comprising an acidic substance and the copy sheet has its upper surface provided with a coating comprising a dyestuff precursor capable of reacting with the acidic substance to form a coloured substance and a binder for the dyestuff precursor. The acidic substance may be a clay a phenol, or a polyvalent metal salt. The dye precursor may be a diaryl phthalide e.g. crystal violet lactone. The latter may be used with benzoyl leucomethylene blue. The invention also comprises an intermediate sheet for use with such duplication sets, said sheet having its lower surface provided with a transfer coating and its upper surface with a dyestuff-precursor coating as described above.
Patent GB-1426999-A (GB)
Title: Machines for trimming and bevelling ophthalmic lenses
IPC: G02C13/00
Filed: 1974-10-09
Abstract: 1426999 Grinding edges of lenses ESSILOR INTERNATIONAL (COMPAGNIE GENERAL D'OPTIQUE) 9 Oct 1974 [9 Oct 1973] 43755/74 Heading B3D A machine for trimming and bevelling an ophthalmic lens comprises a frame 1 carrying a tool 2 and a contact feeler, a rotatably driven spindle 7 for supporting a lens and template and mounted on a support 9 movable in relation to the frame, and connecting and guiding for connecting the support to the frame such that when the tool penetrates into the lens material as a consequence of movement of the support an operative portion of the tool remains substantially in a position of a so-called meniscus sphere which is centred on the spindle axis and located within the lens thickness, said means comprising at least one meniscus-forming rod 21 pivoted at opposite ends to the frame and support and having a length equal to the radius of the sphere, and means for adjusting the radius of the sphere comprising means for shifting the position of the pivotal connection 23 between the rod 21 and frame 1. The movement of the pivotal connection is along a path extending substantially parallel to the chord of a circular arc centred on the operative portion of the tool and having a radius R equal to the length of the rod 21, the arc being described by the point of the spindle axis 8 which is spaced from the operative portion of the tool a distance equal to the length of the rod when the spindle is moved between two endmost positions corresponding to minimum and maximum radii, respectively, for the template. The machine has a frame 1 carrying the tool 2 and feeler, and a support 9 which has a pivotal connection 16 with a pair of rods 14 having universal connection 15 with the frame 1, the support rotatably carrying the spindle 7 for the lens and template. The support also has a bracket 24 connected by a universal joint 22 the meniscus-forming rod 21, the other end of which has a pivotal connection 23 to a plate 35 slidable on the frame 1. The shaft 28 of the pivot 23 extends through a slot 51, corresponding to the path, in the plate 26 and can be secured in selected position along the slot corresponding to the radius of the sphere by a locking screw 57b on a lever 53 movable in the direction of arrows 59 about a trunnion 39a.
Patent GB-1116991-A (GB)
Title: Automatic base line drift corrector circuit
Inventor: FRISBY CLINTON DALE
IPC: H03K7/06
Filed: 1965-10-16
Abstract: 1,116,991. Automatic frequency control systems; transistor circuits. INFOTRONICS CORPORATION. 16 Oct., 1965, No. 43930/65. Headings H3A and H3T. [Also in Division G1] A system where an input signal at terminal 10, Fig. 1, derived for example from a gas chromatograph or from a mass spectroscope and comprising a quiescent D.C. level with information peaks, is amplified (12) and converted into an output frequency, the quiescent frequency of the voltage-to-frequency converter being controlled by a loop comprising a frequency discriminator (in unit 28) driving a servo 30; is characterized in that the automatic frequency control loop is disabled for the duration of information peaks. The latter are detected by a differentiating circuit 20, the output of which is amplified (21) and fed to the inputs of two Schmitt triggers 24 and 25; these are connected to a logic circuit 26 (shown in detail in Fig. 2B, not shown) which produces an output for the duration of an information peak. Once the trigger 24 is operated in response to the rising slope of a peak, the output signal is maintained until the negative slope detector 25 is switched on and then off again. Transistor amplifiers. Fig. 2A.-An input at terminal 15 is amplified by transistors 35 and 40 and fed to emitter follower 60. The amplifier is stabilized by a Zener diode 45, and includes two switches 48 and 54 for altering the highfrequency response. The output of transistor 60 is differentiated by one of the capacitors 66-69 with resistance 71 and fed to an amplifier formed by transistor 75 and emitter-follower 80 feeding a power output transistor (109, Fig. 2B, not shown). There is a feedback from the output through a pair of parallel oppositely poled diodes (116 and 118) to the input along line 119; this varies the effective input impedance of the amplifier for large signal inputs. Transistor 85 stabilizes the bias on the amplifier 75, and a switch 93 varies the gain of the amplifier; switch 98 adjusts the high-frequency response and resistances 82 and 103 adjust the output for zero input. Frequency discriminator and switching circuit, Fig. 3A.-An input on line 164 triggers the monostable circuit 16-175 which turns on transistor 177 to allow capacitor 181 to charge negatively, the capacitor being initially discharged through transistor 182, so that the potential on the capacitor 181 is proportional to the input frequency. The capacitor is connected to two Schmitt trigger circuits 198 and 199; the former is triggered if the input frequency rises above a datum value, and the latter is turned off if the frequency falls below a datum value. The outputs of the trigger circuits are fed through a further circuit (Fig. 3B, not shown) to operate respective relays for restoring the frequency, and the peak recognition circuit prevents the operation of the relays if there is an output on line 223.
Patent GB-1189107-A (GB)
Title: Float-Operated Valve Mechanisms
Inventor: MORRIS EDWARD HOLLINGWORTH
IPC: F16K31/34
Filed: 1966-10-03
Abstract: 1,189,107. Fluid-pressure servomotor systems. DOWTY ROTOL Ltd. Sept.13, 1967 [Oct.3, 1966], No.44082/66. Addition to 1,103,502. Heading G3P. The pilot-operated valve according to the parent Specification is modified in that a non-return valve 37 is positioned in the main valve member 19 to preclude draining of chamber 29 and consequent opening of valve 19 when supply pressure in line 22 is lost. A ball 42 retained by pin 42a allows topping-up of chamber 29 to compensate for any leakage. The ball, suitably of nylon, may be denser or less denser than the liquid and may be solid or hollow and, in those cases where it is denser than the liquid, it may seat under gravity.